Area code 408 — who called you?
Numbers starting with 408 are assigned to California (San Jose, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Milpitas, Mountain View, Santa Clara, Sunnyvale, and Silicon Valley). Paste the full number below to see the caller's name, carrier and community spam reports — free and anonymous.
Area code 408 at a glance
- Area code
- 408
- Region
- California
- Country
- United States
- Dial format
- +1 408 XXX XXXX
Assignment data from the North American Numbering Plan Administration (NANPA).
Got a call from 408? Here's what it means.
The three digits after the +1 country code identify the numbering plan area a number was issued in. For 408, that area is California (San Jose, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Milpitas, Mountain View, Santa Clara, Sunnyvale, and Silicon Valley). If you don't know anyone there, the call is more likely to be a business, a call centre or an automated dialer than a personal contact.
An area code alone can't tell you who is calling. Numbers are portable, and VoIP providers can issue a 408 number to a caller located anywhere in the world — a technique known as neighbour spoofing, where a familiar area code is used to make a call look local.
To identify the caller, run the full 10-digit number through a lookup. WhoCallsMe checks the number against carrier records, business directories and community spam reports, and shows the line type, carrier and reported risk.